Corkscrew



FIG. 1 is a perspective view of a corkscrew showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a reduced front elevational view in an alternate position for use, with a bottle and partially extracted cork shown in broken lines for illustrative purposes only and not being a part of the claimed design. 

The ornamental design for a corkscrew, as shown and described. 